refactor availableServices

lib/dashboard/monitor.js

@@ -1,5 +1,3 @@
-/*jshint esversion: 6 */
-
 let blessed = require("blessed");
 let CommandHistory = require('./command_history.js');
 
@@ -41,20 +39,20 @@ class Dashboard {
   }
 
   availableServices(_services) {
-    let services = [];
-    let check;
-    for (check in _services) {
-      let checkObj = _services[check];
-      if (checkObj.status === 'on') {
-        services.push(checkObj.name.green);
-      } else if (checkObj.status === 'off') {
-        services.push(checkObj.name.red);
-      } else if (checkObj.status === 'warn') {
-        services.push(checkObj.name.grey);
-      } else {
-        services.push(checkObj.name);
+    let stateColors = {
+      'on':  'green',
+      'off': 'red',
+      'warn': 'grey'
+    };
+
+    let services = Object.keys(_services).map((service) => {
+      let checkObj = _services[service];
+      if (checkObj.status in stateColors) {
+        let color = stateColors[checkObj.status];
+        return checkObj.name[color];
       }
-    }
+      return checkObj.name;
+    });
 
     this.progress.setContent(services.join('\n'));
     this.screen.render();